2019
DOI: 10.33751/jsi.v1i02.1000 View full text |Buy / Rent full text
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Abstract: One of the herbs that can be used as a source of natural dye is the kluwek which is brown. This study aims to determine the type of secondary metabolite compounds producing color, and to determine the stability of tannin in various conditions such as pH, oxidizing, UV rays, heating temperature, and storage using UV-Vis spectrophotometry method. This research includes preparation of kluwek, extraction with acetone:water (7:3) with maceration method, phytochemical test (tannin, flavonoid, carotenoid, and anthocy… Show more

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“…These results have some similarities with previous study. Alkaloid was also found in crude extract of fermented P. edule seeds using water, 70% ethanolic, acetone, and n-hexane as solvents, while saponin, flavonoid, and tannin were found in water and ethanolic extracts [ 27 ]. Triterpenoid and steroid were not found in all P. edule seed crude extracts.…”
Section: Resultsmentioning
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“…These results have some similarities with previous study. Alkaloid was also found in crude extract of fermented P. edule seeds using water, 70% ethanolic, acetone, and n-hexane as solvents, while saponin, flavonoid, and tannin were found in water and ethanolic extracts [ 27 ]. Triterpenoid and steroid were not found in all P. edule seed crude extracts.…”
Section: Resultsmentioning
“…Beberapa penelitian telah dilakukan untuk mengidentifikasi berbagai senyawa metabolit sekunder pada ekstrak etanol daun Pangi seperti alkaloid, fenolik, flavonoid, saponin, tannin, karotenoid, antosianin, triterpenoid, dan glikosida dengan aktivitas antioksidan, antiinflamasi, dan antimikroba (Listyorini et al, 2021;Manoppo, 2017;Warnasih & Hasanah, 2019). Senyawa fenolik dan alkaloid pada Pangium edule Reinw.…”
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